01-NokiaUltraSiteGSMEDGEBTSCombiningOptions
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Transcript of 01-NokiaUltraSiteGSMEDGEBTSCombiningOptions
1 © NOKIA Combining_Options/19.12.2002/TKo
Nokia UltraSite
Combining Options
2 © NOKIA Combining_Options/19.12.2002/TKo
Nokia UltraSite GSM Base StationAntenna Combining Options
• Combining By-pass• 2-way Wideband
Combining• 4-way Wideband
Combining• Remote Tune Combining
3 © NOKIA Combining_Options/19.12.2002/TKo
Dual Variable Gain Duplex FilterDVxx
99614746
ANT 1
ANT 2
X 1
TX 2
TX 1
Warning! The weight ofthis unit is over 10k g
RX 2
RX 1
RX 2ext
RX 1ext
R (FLT)Y (ALM)G (OPR)
Front viewIsometric view
4 © NOKIA Combining_Options/19.12.2002/TKo
Receiver Multicoupler2-way M2xA and 6-way M6xA
99586474M2xx M6xx
5 © NOKIA Combining_Options/19.12.2002/TKo
Wideband Combiner WCxx
99614773
6 © NOKIA Combining_Options/19.12.2002/TKo
Remote Tune Combiner RTxx
00217117
7 © NOKIA Combining_Options/19.12.2002/TKo
Dual Duplex UnitDuplexerLNA
TRX's
Antennas
DuplexerLNA
RMC 2-way
splittersplitter
TXRX main
div
TXRX main
div
Combining By-pass
8 © NOKIA Combining_Options/19.12.2002/TKo
COMBINING BY-PASS CONFIGURATION CABLING
9 © NOKIA Combining_Options/19.12.2002/TKo
2-way Wideband Combining
Example:4 TRX/cell
Dual Duplex Unit
Antennas
Duplexer LNA
Duplexer LNA
TXRX main
div
splitter
splitter
WBC
splitter
splitter
WBCTXRX main
div
TXRX main
div
TXRX main
div
2-way RMCs& WBCs
TRXs
10 © NOKIA Combining_Options/19.12.2002/TKo
2-WAY WBC CONFIGURATION CABLING
11 © NOKIA Combining_Options/19.12.2002/TKo
WBC
4-way Wideband Combining
Example:8 TRX/cell
Antennas
WBC
WBC
TXRX main
div
Dual Duplex Unit
LNA
TXRX main
div
WBC
TXRX main
div
TXRX main
div
TXRX main
div
WBC
WBC
TXRX main
div
TXRX main
div
LNA
Duplexer
Duplexer
splittersplitter
splittersplittersplittersplittersplittersplitter
TXRX main
div
12 © NOKIA Combining_Options/19.12.2002/TKo
4-WAY WBC CONFIGURATION CABLING
13 © NOKIA Combining_Options/19.12.2002/TKo
Remote Tune Combining
Duplexer
RTC
LNA's
Cavities
TRX's
Antennas
6
6main
div
6
6-way RMCs
splitter
splitter
TX
RX maindiv
14 © NOKIA Combining_Options/19.12.2002/TKo
Remote Tune Combiner Cabling
15 © NOKIA Combining_Options/19.12.2002/TKo
Combiner by-passWBC 2:1
Output power
44.541.0
12
RF & BBRF & BB
WBC 4:1 37.5 4 RF & BBRTC 41.5 6 BB
dBm W28.212.65.6
14.1
Max no. of TRXs /antenna
Frequencyhopping
NOTE! Output power with GMSK modulation. With 8-PSK modulation can be less.
RF Performance in GSM 900 and GSM 1800
Nominal transmitter output power at antenna connector
Receiver sensitivity (static channel)
Single branch w/o MHA -110.5 dBmGSM 900 GSM 1800
-111.0 dBmSingle branch with MHA -111.0 dBm -112.0 dBm
• 2-way diversity• 4-way diversity (available later)
16 © NOKIA Combining_Options/19.12.2002/TKo
Mixed Configurations• Intelligent Coverage
Enhancement (ICE)• Combines advantages of both coverage and
capacity configurations• TRXs in a sector are divided between
Combining By-pass for coverage and RTC or Wideband Combining configuration for capacity
• Either BCCH in both coverage and capacity parts of sector or a common BCCH in coverage TRX
• Dual Band Configuration• Mixing GSM900 and GSM1800 TRXs and RF Units in the same cabinet.• Diplexer allows two frequency bands to use same antenna• Allows both GSM900 and GSM1800 frequency bands to be used in the same
area.• BSC SW 10.5 release will allow GSM900 and GSM1800 to be combined into one
sector (common BCCH)